hacktricks/network-services-pentesting/1723-pentesting-pptp.md

# 1723 - Pentesting PPTP

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## Basic Information

Commonly used to provide remote access to mobile devices, Point-to-Point Tunneling Protocol (PPTP) uses TCP port 1723 for key exchange and IP protocol 47 (GRE) to encrypt data between peers.

**Default Port**:1723

## Enumeration

```bash
nmap –Pn -sSV -p1723 <IP>
```

### [Brute Force](../generic-methodologies-and-resources/brute-force.md#pptp)

## Vulnerabilities

{% embed url="https://www.schneier.com/academic/pptp/" %}

{% embed url="https://github.com/moxie0/chapcrack" %}

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